搜索结果: 1-15 共查到“农学 Nitrogen content”相关记录26条 . 查询时间(0.093 秒)
Higher leaf nitrogen content is linked to tighter stomatal regulation of transpiration and more efficient water use across dryland trees
arid ecosystems ci/ca ratio leafδ13C leaf δ18O plant isotopic composition
2023/11/28
The least-cost economic theory of photosynthesis shows that water and nitrogen are mutually substitutable resources to achieve a given carbon gain. However, vegetation in the Sahel has to cope with th...
Non-destructive Measurements of Toona sinensis Chlorophyll and Nitrogen Content Under Drought Stress Using Near Infrared Spectroscopy
Toona Chlorophyll Nitrogen Content Drought Stress
2023/6/2
Drought is a climatic event that considerably impacts plant growth, reproduction and productivity. Toona sinensis is a tree species with high economic, edible and medicinal value, and has drought resi...
Rapid Detection of Total Nitrogen Content in Soy Sauce using NIR Spectroscopy
near-infrared spectroscopy partial least squares
2015/12/30
A method for the rapid and nondestructive determination of total nitrogen content in soy sauce was explored. Prediction models were established using near-infrared spectroscopy combined with each of t...
Responses of milk urea nitrogen content to dietary crude protein level and degradability in lactatingHolsteindairy cows
protein level protein degradability milk urea N lactating cos
2015/6/2
Two experiments were conducted to investigate the effects of dietary crude protein level and degradability on milk urea nitrogen (MUN) content. In experiment 1, twelve multiparous lactating cows avera...
Effect of agricultural lands afforestation and tree species composition on the soil reaction, total organic carbon and nitrogen content in the uppermost mineral soil profile
acidification afforestation carbon nitrogen soil reaction
2015/3/10
Forests occupy one third of the world’s land area and govern carbon (C) transfers and influence nitrogen (N) content in the biosphere. Afforestation leads to soil changes of specific dynamics, often a...
Varietal Differences in Photosynthetic Rates in Rice Plants,with Special Reference to the Nitrogen Content of Leaves
Nitrogen content Photosynthetic rate Rice variety Rubisco content Stomatal conductance
2010/3/4
The photosynthetic rate in the flag leaf of rice at the full heading stage was examined in three japonica varieties, Koshihikari, Aikoku and Asanohikari, and the indica high-yielding variety Takanari ...
Spatial Variations in Needle Nitrogen Content in Sugi (Cryptomeria japonica D. Don) Plantations across Japan
Cryptomeria japonica Gi*(d) statistics needle nitrogen content spatial variation temperature
2009/8/24
For a general assessment of the nitrogen status of sugi plantations in Japan, we measured nitrogen content in the needles of sugi (Cryptomeria japonica D. Don) trees growing at 531 sites across the co...
Effect of Nitrogen Content of Seed Corm on Growth and Yield of Konjak Plant(Amorphophallus konjac K. Koch)
Growth Konjak plant Nitrogen absorption Nitrogen content Seed corm weight Yield
2009/8/5
Konjak plants (cv. Zairai) were grown in pots using 2-year-old seed corms of 75 g in weight, containing different amount of nitrogen. The leaf area, dry weight and amount of nitrogen absorption were m...
Effects of Canopy Light Distribution Characteristics and Leaf Nitrogen Content on Efficiency of Radiation Use in Dry Matter Accumulation of Soybean Cultivars
Dry matter production Leaf nitrogen content Light extinction coefficient Radiation conversion efficiency SLW Soybean Varietal difference
2009/7/30
The amount of dry matter produced per photosynthetically active radiation (PAR) intercepted by the canopy (EPAR) and factors which might affect EPAR were determined for various soybean cultivars, and ...
Influence of Leaf Xylem Water Potential and Leaf Position on Relationship between Nitrogen Content and Photosynthetic Rate of Rice Plant
Days after fully expanded Leaf position Leaf xylem water potential Nitrogen content
2009/7/29
Even though the nitrogen content (mgNdm-2) of rice leaves is the same, a large difference in the net photosynthetic rate (Pn) has been recognized. To determine the reasons for the difference, leaf xyl...
Correlation of the Amount of Nitrogen Accumulated in the Aboveground Biomass at Panicle Initiation and Nitrogen Content of Soil with the Nitrogen Uptake by Lowland Rice during the Period from Panicle Initiation to Heading
Nitrogen uptake Oryza sativa L. Precision agriculture Recovery ratio Soil nitrogen Topdressing
2009/7/29
To estimate the site-specific optimal amount of nitrogen (N) to be applied as top-dressing (N top-dressing) at panicle initiation, we examined the effects of the amount of N accumulated in the abovegr...
Influence of Leaf Nitrogen Content on Grain Weight at Early Ripening Period and Relationship between Root Respiration and Leaf Area per Spikelet of Rice Plant
Ammonium concentration Grain filling Grain weight Leaf area Nitrogen content Rice Root respiration
2009/7/28
The same seedlings of three rice cultivars were transplanted into both paddy fields, experimental fields of Tottori University (Koyama) and skillful farmer's field (Hojo), and given their respective ...
Rice Leaf Photosynthesis as a Function of Nitrogen Content and Crop Developmental Stage
Developmental stage Leaf nitrogen Model Photosynthesis Rice
2009/7/27
Rice Leaf Photosynthesis as a Function of Nitrogen Content and Crop Developmental Stage.
Nitrogen Content of Leaves Affects the Nodal Position of the Last Visible Primary Tiller on Main Stems of Rice Plants Grown at Various Plant Densities
Direct sowing Last visible primary tiller Leaf nitrogen content Nodal position Plant density Rice
2009/7/24
The nitrogen content of leaves in rice plants at various planting densities in the field and under high and low levels of nitrogen in pots were comparatively examined, and thereby the effect of the ni...
Estimation of Nitrogen Content of Brown Rice in Rice Cultivar Koshihikari at Heading Time
Koshihikari Nitrogen content of brown rlce
2009/7/23
Estimation of Nitrogen Content of Brown Rice in Rice Cultivar Koshihikari at Heading Time.